File:Exotic World Blisters Under the Sun.jpg

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DescriptionExotic World Blisters Under the Sun.jpg	English: This artist's concept shows a Jupiter-like planet soaking up the scorching rays of its nearby "sun." NASA's Spitzer Space Telescope used its heat-seeking infrared eyes to figure out that a gas-giant planet like the one depicted here is two-faced, with one side perpetually in the cold dark, and the other forever blistering under the heat of its star. The illustration portrays how the planet would appear to infrared eyes, showing temperature variations across its surface. The planet, called Upsilon Andromedae b, was first discovered in 1996 around the star Upsilon Andromedae, located 40 light-years away in the constellation Andromeda. This star also has two other planets orbiting farther out. Upsilon Andromedae b is what's known as a "hot-Jupiter" planet, because it is made of gas like our Jovian giant, and it is hot, due to its tight, 4.6-day-long jaunt around its star. The toasty planet orbits at one-sixth the distance of Mercury from our own sun. It travels in a plane that is seen neither edge- nor face-on from our solar system, but somewhere in between. Scientists do not know how fast Upsilon Andromedae b is spinning on its axis, but they believe that it is tidally locked to its star, just as our locked moon forever hides its "dark side" from Earth's view.
Date	5 June 2009, 14:52:19
Source	http://planetquest.jpl.nasa.gov/image/64#
Author	NASA/JPL-Caltech/R. Hurt (SSC)

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	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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- Upsilon Andromedae b
- Plantilla:Portada Bueno/4615
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- Musica delle sfere

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Author	Spitzer Space Telescope
Copyright holder	http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml
Image title	This artist's concept shows a Jupiter-like planet soaking up the scorching rays of its nearby"sun."NASA's Spitzer Space Telescope used its heat-seeking infrared eyes to figure out that a gas-giant planet like the one depicted here is two-faced, with one side perpetually in the cold dark, and the other forever blistering under the heat of its star. The illustration portrays how the planet would appear to infrared eyes, showing temperature variations across its surface.The planet, called Upsilon Andromedae b, was first discovered in 1996 around the star Upsilon Andromedae, located 40 light-years away in the constellation Andromeda. This star also has two other planets orbiting farther out. Upsilon Andromedae b is what's known as a"hot-Jupiter"planet, because it is made of gas like our Jovian giant, and it is hot, due to its tight, 4.6-day-long jaunt around its star. The toasty planet orbits at one-sixth the distance of Mercury from our own sun. It travels in a plane that is seen neither edge- nor face-on from our solar system, but somewhere in between. Scientists do not know how fast Upsilon Andromedae b is spinning on its axis, but they believe that it is tidally locked to its star, just as our locked moon forever hides its"dark side"from Earth's view.Spitzer observed Upsilon Andromedae b at five points during the planet's trip around its star. The planet's light levels went up or down, as detected by Spitzer, depending on whether the planet's sunlit or dark side was pointed toward Earth. These data indicate that the temperature difference between the two hemispheres of the planet is about 1,400 degrees Celsius (2,550 degrees Fahrenheit).According to astronomers, this means that the side of the planet that faces the star is always as hot as lava, while the other side could potentially be as cold as ice. Specifically, the hot side of the planet ranges from about 1,400 to 1,650 degrees Celsius (2,550 to 3,000 degrees Fahrenheit), and the cold side from about minus 20 to 230 degrees Celsius (minus 4 to 450 degrees Fahrenheit). How can one side always be hot? The atmosphere of the planet must be absorbing and reradiating light fast enough that any heated gas circulating around the planet is cooled off before it reaches the darkside.
Short title	Exotic World Blisters Under the Sun
Credit/Provider	NASA/JPL-Caltech/R. Hurt (SSC)
Headline	This artist's concept shows a Jupiter-like planet, called Upsilon Andromedae b, soaking up the scorching rays of its nearby star. NASA's Spitzer Space Telescope determined that this planet is two-faced, with one side perpetually in the cold dark, and the other forever blistering under the heat of its star.
Source	Spitzer Space Telescope
Date and time of data generation	12 October 2006
Width	2,400 px
Height	3,200 px
Bits per component	8 8 8
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	14:52, 5 June 2009
Color space	Uncalibrated
Contact information	http://www.spitzer.caltech.edu 1200 E. California Blvd. Pasadena, CA, 91125 USA
Keywords	Upsilon Andromedae b
IIM version	2

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